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Boards - Precocious Puberty
OBGYN Qualifying Exam
126
Other
Post-Graduate
07/12/2020

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Cards

Term
what is going on in the HPA axis as a infant and child
Definition
it is very sensitive to estrogen, E2 is <10 and it suppresses the HPA even though its low
Term
stages of puberty
Definition
thelarche, androgenarche, pubarche, gonadarche, menarche
Term
average bone age at thelarche
Definition
11
Term
average age of androgenarche
Definition
6
Term
what happens in androgenarche
Definition
it is independent of HPA, response to ACTH becomes more sensitive and favors DHEA production
Term
average age of pubic hair
Definition
9y AA, 10y white
Term
average age of axillary hair
Definition
10y AA, 12y white
Term
what happens in gonadarche
Definition
the HPA axis becomes less sensitive to estrogen negative feedback and more sensitive to GNRH so FHS/LH are made thus making E2/androgens
Term
average bone age at menarche
Definition
13
Term
how long is it usually between androgenarche and gonadarche
Definition
2-3y
Term
#1 factor on when someone will go into puberty
Definition
genetics
Term
factors alterning when someone will go into puberty - 4
Definition
genetics, location, light (differnt in blind people), BMI need 17%
Term
why does low BMI alter puberty timing
Definition
leptin is low with low BMI, we dont know why but in puberty leptin is supposed to be high, it is also involved in LH surge, ovulation, and menarche
Term
what is the gonadostat theory
Definition
in gonadarche the HPA axis becomes less senesitive to estrogen negative feedback and more sensitive to GNRH
Term
tanner stages breast
Definition
1 - papilla
2 - bud
3 - enlarge, nipples dont separate
4 - secondary aerolar mound
5 - mature
Term
tanner stages pubic hair
Definition
1 - none
2 - sparse
3 - mons
4 - lateral spread
5 - thighs
Term
what is a GNRH suppression test
Definition
give lupron 20ug and in 40min test LH, if <6 the the precocious puberty is independent of GNRH, if >6 then it is dependent on GNRH
Term
define precocious puberty
Definition
breast or hair growth with menses at <8yo (or <7yo in while and <6yo in AA)
Term
when should you initiate a precocious puberty work up
Definition
<6yo with hair growth OR breast development
<8yo with both hair growth AND breast development
Term
4 signs the precocious puberty is likley pathological
Definition
bones are >2 fast, height is 2SD low, CNS symptoms, affecting emotional health
Term
3 signs the precocious puberty is likely CNS
Definition
<6yo, rapid progression, CNS symptoms
Term
if you identify central precocious puberty with LH >6 on GNRH test what do you order next
Definition
MRI brain
Term
if you identify peripherial precocious puberty with LH <6 (<0.1) on GNRH test what do you order next
Definition
US pelvis
Term
when you do your GNRH test for precocious puberty and you get the FSH and LH, what does it mean if the FSH is high
Definition
it might be isolated premature thelarche
Term
3 signs it might be central precocious puberty clinically
Definition
timing is the same as regular puberty just earlier, increased bone age and height are appropirate for that stage in puberty
Term
causes of central pecocious puberty - 5
Definition
idiopathic, constitutional, rapid resumption of nutrition, brain tumors/infection/damage, conganital midline defects, NF1, struge webber
Term
what insults to the brain (tumors, infections, damage) can cause precocious puberty - 11
Definition
encephalitis, meningitis, head trauma, hypothalamic harmatoma (of tuber cinereum), craniophaeyngoma, astrocytoma, penedyoma, pinealoma, optic gluoma, hydrocephalus, subarachnoid cyst
Term
#1 tumor that causes precocious puberty
Definition
hypothalamic harmatoma of tuber cinereum
Term
#1 cause of central precocious puberty
Definition
idiopathic and constitutional are 50%
Term
average age of constitutional precocious puberty
Definition
8
Term
signs of a hypothalamic harmatoma of tuber cinereum and cause
Definition
1-2yo puberty, cells increased GFb which cause increased GNRH
Term
#1 cause of peripherial precocious puberty
Definition
simple functional ovarian cyst
Term
3 causes of virilizing precocious puberty
Definition
sertoli leydig tumor, gonadoblastoma, 21-hydroxylase deficiency non-classical
Term
only cause of percocious puberty with normal (or even decreased) bone age
Definition
primary hypothyroidism
Term
management of central precocious puberty
Definition
suppress with GNRH analog (lupron) until appropirate puberty time
Term
causes of peripherial precocious puberty - 6
Definition
ovarian tumors, mccune albright, 21hydroxylase non-classical, peutz jegher, silver russel, enviromental
Term
enviromental causes of peripherial precocious puberty - 6
Definition
OCPs, premarin, cosmetics, biphenyls, pesticides, topical steroids
Term
ovarian masses that cause peripherial precocious puberty - 3
Definition
simple functional cyst, granulosa cell tumor, gonadoblastoma
Term
management of peripherial precocious puberty - when to treat - 3
Definition
>6 cm/y off growth, bone age >1y off, perdicted height < target
Term
management of peripherial precocious puberty
Definition
GNRH analogs (can do 1y implant called histerlin), need to monitor E2 to be <10 q3-6mo
Term
you have to start GNRH analog in precocious puberty before what age to increase height
Definition
6
Term
which cause of precocious puberty is associated gonadal disgenesys
Definition
gonadoblastoma
Term
why does primary hypothyroidism cause precocious puberty
Definition
so much TSH it activates the FSH receptors (and PRL receptors)
Term
signs of primary hypothyroidism
Definition
big ovaries, TSH in 900s, elevated E2, elevated PRL, galactorrhea, NORMAL OR LOW BONE AGE
Term
McCune albright is what % of percocious puberty
Definition
5
Term
cause of McCune albright
Definition
ovaries make E2 without FSH/LH due to GSA mutation
Term
signs McCune albright - 5
Definition
infant puberty, cafe au lait spots that are irregular and stop at the midline, fibrous bone dysplasia and fracture, progressive scoliosis
Term
McCune albright associated diseases - 6
Definition
GH/PRL tumors (Acromeagly), cushings, adrenal hyperplasia, hyperthyroid, ovarian cysts
Term
McCune albright treatment - 2
Definition
AIs, bisphosphonates for bone dysplasia and fracture
Term
define precocious puberty
Definition
breast or hair growth with menses at <8yo (or <7yo in while and <6yo in AA)
Term
when should you initiate a precocious puberty work up
Definition
<6yo with hair growth OR breast development
<8yo with both hair growth AND breast development
Term
4 signs the precocious puberty is likley pathological
Definition
bones are >2 fast, height is 2SD low, CNS symptoms, affecting emotional health
Term
3 signs the precocious puberty is likely CNS
Definition
<6yo, rapid progression, CNS symptoms
Term
if you identify central precocious puberty with LH >6 on GNRH test what do you order next
Definition
MRI brain
Term
if you identify peripherial precocious puberty with LH <6 (<0.1) on GNRH test what do you order next
Definition
US pelvis
Term
when you do your GNRH test for precocious puberty and you get the FSH and LH, what does it mean if the FSH is high
Definition
it might be isolated premature thelarche
Term
3 signs it might be central precocious puberty clinically
Definition
timing is the same as regular puberty just earlier, increased bone age and height are appropirate for that stage in puberty
Term
causes of central pecocious puberty - 5
Definition
idiopathic, constitutional, rapid resumption of nutrition, brain tumors/infection/damage, conganital midline defects, NF1, struge webber
Term
what insults to the brain (tumors, infections, damage) can cause precocious puberty - 11
Definition
encephalitis, meningitis, head trauma, hypothalamic harmatoma (of tuber cinereum), craniophaeyngoma, astrocytoma, penedyoma, pinealoma, optic gluoma, hydrocephalus, subarachnoid cyst
Term
#1 tumor that causes precocious puberty
Definition
hypothalamic harmatoma of tuber cinereum
Term
#1 cause of central precocious puberty
Definition
idiopathic and constitutional are 50%
Term
average age of constitutional precocious puberty
Definition
8
Term
signs of a hypothalamic harmatoma of tuber cinereum and cause
Definition
1-2yo puberty, cells increased GFb which cause increased GNRH
Term
#1 cause of peripherial precocious puberty
Definition
simple functional ovarian cyst
Term
3 causes of virilizing precocious puberty
Definition
sertoli leydig tumor, gonadoblastoma, 21-hydroxylase deficiency non-classical
Term
only cause of percocious puberty with normal (or even decreased) bone age
Definition
primary hypothyroidism
Term
management of central precocious puberty
Definition
suppress with GNRH analog (lupron) until appropirate puberty time
Term
causes of peripherial precocious puberty - 6
Definition
ovarian tumors, mccune albright, 21hydroxylase non-classical, peutz jegher, silver russel, enviromental
Term
enviromental causes of peripherial precocious puberty - 6
Definition
OCPs, premarin, cosmetics, biphenyls, pesticides, topical steroids
Term
ovarian masses that cause peripherial precocious puberty - 3
Definition
simple functional cyst, granulosa cell tumor, gonadoblastoma
Term
management of peripherial precocious puberty - when to treat - 3
Definition
>6 cm/y off growth, bone age >1y off, perdicted height < target
Term
management of peripherial precocious puberty
Definition
GNRH analogs (can do 1y implant called histerlin), need to monitor E2 to be <10 q3-6mo
Term
you have to start GNRH analog in precocious puberty before what age to increase height
Definition
6
Term
which cause of precocious puberty is associated gonadal disgenesys
Definition
gonadoblastoma
Term
why does primary hypothyroidism cause precocious puberty
Definition
so much TSH it activates the FSH receptors (and PRL receptors)
Term
signs of primary hypothyroidism
Definition
big ovaries, TSH in 900s, elevated E2, elevated PRL, galactorrhea, NORMAL OR LOW BONE AGE
Term
McCune albright is what % of percocious puberty
Definition
5
Term
cause of McCune albright
Definition
ovaries make E2 without FSH/LH due to GSA mutation
Term
signs McCune albright - 5
Definition
infant puberty, cafe au lait spots that are irregular and stop at the midline, fibrous bone dysplasia and fracture, progressive scoliosis
Term
McCune albright associated diseases - 6
Definition
GH/PRL tumors (Acromeagly), cushings, adrenal hyperplasia, hyperthyroid, ovarian cysts
Term
McCune albright treatment - 2
Definition
AIs, bisphosphonates for bone dysplasia and fracture
Term
define precocious puberty
Definition
breast or hair growth with menses at <8yo (or <7yo in while and <6yo in AA)
Term
when should you initiate a precocious puberty work up
Definition
<6yo with hair growth OR breast development
<8yo with both hair growth AND breast development
Term
4 signs the precocious puberty is likley pathological
Definition
bones are >2 fast, height is 2SD low, CNS symptoms, affecting emotional health
Term
3 signs the precocious puberty is likely CNS
Definition
<6yo, rapid progression, CNS symptoms
Term
if you identify central precocious puberty with LH >6 on GNRH test what do you order next
Definition
MRI brain
Term
if you identify peripherial precocious puberty with LH <6 (<0.1) on GNRH test what do you order next
Definition
US pelvis
Term
when you do your GNRH test for precocious puberty and you get the FSH and LH, what does it mean if the FSH is high
Definition
it might be isolated premature thelarche
Term
3 signs it might be central precocious puberty clinically
Definition
timing is the same as regular puberty just earlier, increased bone age and height are appropirate for that stage in puberty
Term
causes of central pecocious puberty - 5
Definition
idiopathic, constitutional, rapid resumption of nutrition, brain tumors/infection/damage, conganital midline defects, NF1, struge webber
Term
what insults to the brain (tumors, infections, damage) can cause precocious puberty - 11
Definition
encephalitis, meningitis, head trauma, hypothalamic harmatoma (of tuber cinereum), craniophaeyngoma, astrocytoma, penedyoma, pinealoma, optic gluoma, hydrocephalus, subarachnoid cyst
Term
#1 tumor that causes precocious puberty
Definition
hypothalamic harmatoma of tuber cinereum
Term
#1 cause of central precocious puberty
Definition
idiopathic and constitutional are 50%
Term
average age of constitutional precocious puberty
Definition
8
Term
signs of a hypothalamic harmatoma of tuber cinereum and cause
Definition
1-2yo puberty, cells increased GFb which cause increased GNRH
Term
#1 cause of peripherial precocious puberty
Definition
simple functional ovarian cyst
Term
3 causes of virilizing precocious puberty
Definition
sertoli leydig tumor, gonadoblastoma, 21-hydroxylase deficiency non-classical
Term
only cause of percocious puberty with normal (or even decreased) bone age
Definition
primary hypothyroidism
Term
management of central precocious puberty
Definition
suppress with GNRH analog (lupron) until appropirate puberty time
Term
causes of peripherial precocious puberty - 6
Definition
ovarian tumors, mccune albright, 21hydroxylase non-classical, peutz jegher, silver russel, enviromental
Term
enviromental causes of peripherial precocious puberty - 6
Definition
OCPs, premarin, cosmetics, biphenyls, pesticides, topical steroids
Term
ovarian masses that cause peripherial precocious puberty - 3
Definition
simple functional cyst, granulosa cell tumor, gonadoblastoma
Term
management of peripherial precocious puberty - when to treat - 3
Definition
>6 cm/y off growth, bone age >1y off, perdicted height < target
Term
management of peripherial precocious puberty
Definition
GNRH analogs (can do 1y implant called histerlin), need to monitor E2 to be <10 q3-6mo
Term
you have to start GNRH analog in precocious puberty before what age to increase height
Definition
6
Term
which cause of precocious puberty is associated gonadal disgenesys
Definition
gonadoblastoma
Term
why does primary hypothyroidism cause precocious puberty
Definition
so much TSH it activates the FSH receptors (and PRL receptors)
Term
signs of primary hypothyroidism
Definition
big ovaries, TSH in 900s, elevated E2, elevated PRL, galactorrhea, NORMAL OR LOW BONE AGE
Term
McCune albright is what % of percocious puberty
Definition
5
Term
cause of McCune albright
Definition
ovaries make E2 without FSH/LH due to GSA mutation
Term
signs McCune albright - 5
Definition
infant puberty, cafe au lait spots that are irregular and stop at the midline, fibrous bone dysplasia and fracture, progressive scoliosis
Term
McCune albright associated diseases - 6
Definition
GH/PRL tumors (Acromeagly), cushings, adrenal hyperplasia, hyperthyroid, ovarian cysts
Term
McCune albright treatment - 2
Definition
AIs, bisphosphonates for bone dysplasia and fracture
Term
define premature adrenarche
Definition
pubic or axillary hair before 8yo without any other puberty signs
Term
define premature thelarche
Definition
breast <8yo, (or <7yo white, <6yo AA) without any other puberty signs
Term
define premature menarche
Definition
menarchal bleeding without thelarche androgenarche or any other puberty signs
Term
causes of premature andrenarche - 4
Definition
#1 idiopathic, CAH, kallmann, gonadal dysgenesis
Term
management of premature andrenarche
Definition
rule out everything else, serial heights and bone age just to make sure
Term
prognosis of premature andrenarche - 6
Definition
slight early puberty, normal adult height, increased PCOS/DM/HLD risk, 20% you were wrong its precocious puberty
Term
cause of premature thelarche
Definition
possible increased sensitivity of the breast tissue to normal estrogen
Term
signs of premature thelarche
Definition
usually tanner stage 2 and UL/BL
Term
2 types of premature thelarche
Definition
type 1 6mo-2y (60%), type 2 5-7y
Term
management of premature thelarche
Definition
rule out everything else, folow up q4-6mo just to make sure it isnt anything else
Term
prognosis of premature thelarche - 3
Definition
50% regress, 35% persist, 15% you were wrong its precocious puberty
Term
causes of premature menarche - 5
Definition
idiopathic, foreign body, infection, abuse, cancer
Term
if you suspect premature menarche you BETTER rule out what
Definition
McCune Albright
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